Storage tank



FIG. 1. is a perspective view of a storage tank illustrating my new design.

FIG. 2. is a top view thereof.

FIG. 3 is a front view thereof, the rear view of the storage tank a mirror image.

FIG. 4. is a bottom view thereof; and,

FIG. 5. is a left side view thereof, the right side of the storage tank a mirror image. 

The ornamental design for a storage tank, as shown and described. 